Relay protection setting value checking method based on digital dynamic simulation technology

A technology of relay protection and dynamic simulation, which is applied in the field of electric power engineering, can solve problems such as large differences in setting values, missettings, deviations in guidelines, specifications, and countermeasures, so as to improve stability, reduce malfunctions, and use flexible effects

Pending Publication Date: 2021-11-16
STATE GRID XINYUAN +1
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Problems solved by technology

The level of protection setting and calculation personnel is uneven, and there are deviations in the understanding of guidelines, specifications and countermeasures. The calculation of different setting calculation principles is quite different, which has a great impact on the correctness of protection actions; different protection There are differences in the principle, setting format,

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  • Relay protection setting value checking method based on digital dynamic simulation technology

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[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0017] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0018] like figure 1 As shown, the embodiment of the present application provides a relay protection setting verification method based on digital dynamic simulation technology, including: obtaining external power grid system parameters, power plant primary equipment parameters, excitation system parameters and power plant relay protection setting value; use the external power grid system parameters, the primary equipment parameters of the power plant, the excitation system parameters and the plant power relay protection fixed value to build a power system simulation model; use the ...

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Abstract

The invention discloses a relay protection constant value checking method based on a digital dynamic simulation technology. The method comprises the following steps of: acquiring external power grid system parameters, power plant primary equipment parameters, excitation system parameters and auxiliary power relay protection constant values; building a power system simulation model by using the external power grid system parameters, the power plant primary equipment parameters, the excitation system parameters and the auxiliary power relay protection constant values; and performing fault simulation by using the power system simulation model, and judging whether the auxiliary power relay protection constant values are correct or not according to a protection action. According to the method, the correctness of the auxiliary power relay protection constant values can be verified in advance, and the occurrence probability of relay protection misoperation is reduced.

Description

technical field [0001] The invention relates to the field of electric power engineering. More specifically, the present invention relates to a method for checking the fixed value of relay protection based on digital dynamic simulation technology. Background technique [0002] The setting value of the relay protection device is usually calculated and reviewed according to the setting calculation guidelines, specifications, countermeasures, etc., and put into operation after setting in the protection device. Whether the calculation result of the setting value is correct, whether the settings of the control word and tripping matrix are in line with the site There is no way to verify whether the reality and the fixed value range match. The level of protection setting and calculation personnel is uneven, and there are deviations in the understanding of guidelines, specifications and countermeasures. The calculation of different setting calculation principles is quite different, ...

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Application Information

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IPC IPC(8): H02H7/26H02H3/04G06F30/20
CPCH02H7/26H02H3/044G06F30/20
Inventor 罗胤赵颖赵俊杰常玉红郝国文王小军李建光曹永闯王坤胡立昂杨恒乐林梦
Owner STATE GRID XINYUAN
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